To everyone saying "we've done this before" or "we're not even landing" - we have sent humans to the Moon a total of 9 times. This is the 10th. Nobody has been out there in 50+ years. We've only landed on the Moon 6 times, and this mission is a stepping stone to future manned landings.
Do people really feel like "yeah, we went 9 times, that's enough, no need to ever send anyone again"?